#![allow(non_snake_case)] use project; #[test] fn has_instance() { project() .file( "src/lib.rs", r#" #![feature(proc_macro, wasm_custom_section)] extern crate wasm_bindgen; use wasm_bindgen::prelude::*; use wasm_bindgen::js; #[wasm_bindgen] pub fn symbol_has_instance() -> js::Symbol { js::Symbol::has_instance() } "#, ) .file( "test.ts", r#" import * as assert from "assert"; import * as wasm from "./out"; export function test() { assert.ok(wasm.symbol_has_instance()); assert.ok([] instanceof Array); } "#, ) .test() }